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src/share/vm/ci/ciObjectFactory.hpp@55fb97c4c58d (annotated)

src/share/vm/ci/ciObjectFactory.hpp

Tue, 24 Dec 2013 11:48:39 -0800

author
mikael
date
Tue, 24 Dec 2013 11:48:39 -0800
changeset 6198
55fb97c4c58d
parent 5628
f98f5d48f511
child 6876
710a3c8b516e
child 6992
2c6ef90f030a
permissions
-rw-r--r--

8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov

duke@435 1 /*
mikael@6198 2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
stefank@2314 25 #ifndef SHARE_VM_CI_CIOBJECTFACTORY_HPP
stefank@2314 26 #define SHARE_VM_CI_CIOBJECTFACTORY_HPP
stefank@2314 27
stefank@2314 28 #include "ci/ciClassList.hpp"
stefank@2314 29 #include "ci/ciObject.hpp"
stefank@2314 30 #include "utilities/growableArray.hpp"
stefank@2314 31
duke@435 32 // ciObjectFactory
duke@435 33 //
duke@435 34 // This class handles requests for the creation of new instances
duke@435 35 // of ciObject and its subclasses. It contains a caching mechanism
duke@435 36 // which ensures that for each oop, at most one ciObject is created.
duke@435 37 // This invariant allows efficient implementation of ciObject.
duke@435 38 class ciObjectFactory : public ResourceObj {
never@3138 39 friend class VMStructs;
never@3138 40 friend class ciEnv;
never@3138 41
duke@435 42 private:
duke@435 43 static volatile bool _initialized;
coleenp@4037 44 static GrowableArray<ciMetadata*>* _shared_ci_metadata;
duke@435 45 static ciSymbol* _shared_ci_symbols[];
duke@435 46 static int _shared_ident_limit;
duke@435 47
duke@435 48 Arena* _arena;
coleenp@4037 49 GrowableArray<ciMetadata*>* _ci_metadata;
duke@435 50 GrowableArray<ciMethod*>* _unloaded_methods;
duke@435 51 GrowableArray<ciKlass*>* _unloaded_klasses;
jrose@1957 52 GrowableArray<ciInstance*>* _unloaded_instances;
duke@435 53 GrowableArray<ciReturnAddress*>* _return_addresses;
coleenp@2497 54 GrowableArray<ciSymbol*>* _symbols; // keep list of symbols created
duke@435 55 int _next_ident;
duke@435 56
duke@435 57 public:
duke@435 58 struct NonPermObject : public ResourceObj {
duke@435 59 ciObject* _object;
duke@435 60 NonPermObject* _next;
duke@435 61
duke@435 62 inline NonPermObject(NonPermObject* &bucket, oop key, ciObject* object);
duke@435 63 ciObject* object() { return _object; }
duke@435 64 NonPermObject* &next() { return _next; }
duke@435 65 };
duke@435 66 private:
duke@435 67 enum { NON_PERM_BUCKETS = 61 };
duke@435 68 NonPermObject* _non_perm_bucket[NON_PERM_BUCKETS];
duke@435 69 int _non_perm_count;
duke@435 70
coleenp@4037 71 int find(Metadata* key, GrowableArray<ciMetadata*>* objects);
coleenp@4037 72 bool is_found_at(int index, Metadata* key, GrowableArray<ciMetadata*>* objects);
coleenp@4037 73 void insert(int index, ciMetadata* obj, GrowableArray<ciMetadata*>* objects);
coleenp@4037 74
duke@435 75 ciObject* create_new_object(oop o);
coleenp@4037 76 ciMetadata* create_new_object(Metadata* o);
coleenp@4037 77
duke@435 78 static bool is_equal(NonPermObject* p, oop key) {
duke@435 79 return p->object()->get_oop() == key;
duke@435 80 }
duke@435 81
duke@435 82 NonPermObject* &find_non_perm(oop key);
duke@435 83 void insert_non_perm(NonPermObject* &where, oop key, ciObject* obj);
duke@435 84
coleenp@4037 85 void init_ident_of(ciBaseObject* obj);
duke@435 86
duke@435 87 Arena* arena() { return _arena; }
duke@435 88
duke@435 89 void print_contents_impl();
duke@435 90
jrose@1957 91 ciInstance* get_unloaded_instance(ciInstanceKlass* klass);
jrose@1957 92
duke@435 93 public:
duke@435 94 static bool is_initialized() { return _initialized; }
duke@435 95
duke@435 96 static void initialize();
duke@435 97 void init_shared_objects();
coleenp@2497 98 void remove_symbols();
duke@435 99
duke@435 100 ciObjectFactory(Arena* arena, int expected_size);
duke@435 101
duke@435 102 // Get the ciObject corresponding to some oop.
duke@435 103 ciObject* get(oop key);
coleenp@4037 104 ciMetadata* get_metadata(Metadata* key);
coleenp@2497 105 ciSymbol* get_symbol(Symbol* key);
coleenp@2497 106
duke@435 107 // Get the ciSymbol corresponding to one of the vmSymbols.
duke@435 108 static ciSymbol* vm_symbol_at(int index);
duke@435 109
duke@435 110 // Get the ciMethod representing an unloaded/unfound method.
duke@435 111 ciMethod* get_unloaded_method(ciInstanceKlass* holder,
duke@435 112 ciSymbol* name,
twisti@3197 113 ciSymbol* signature,
twisti@3197 114 ciInstanceKlass* accessor);
duke@435 115
duke@435 116 // Get a ciKlass representing an unloaded klass.
duke@435 117 ciKlass* get_unloaded_klass(ciKlass* accessing_klass,
duke@435 118 ciSymbol* name,
duke@435 119 bool create_if_not_found);
duke@435 120
jrose@1957 121 // Get a ciInstance representing an unresolved klass mirror.
jrose@1957 122 ciInstance* get_unloaded_klass_mirror(ciKlass* type);
jrose@1957 123
jrose@1957 124 // Get a ciInstance representing an unresolved method handle constant.
jrose@1957 125 ciInstance* get_unloaded_method_handle_constant(ciKlass* holder,
jrose@1957 126 ciSymbol* name,
jrose@1957 127 ciSymbol* signature,
jrose@1957 128 int ref_kind);
jrose@1957 129
jrose@1957 130 // Get a ciInstance representing an unresolved method type constant.
jrose@1957 131 ciInstance* get_unloaded_method_type_constant(ciSymbol* signature);
jrose@1957 132
duke@435 133
roland@5628 134 ciInstance* get_unloaded_object_constant();
roland@5628 135
duke@435 136 // Get the ciMethodData representing the methodData for a method
duke@435 137 // with none.
duke@435 138 ciMethodData* get_empty_methodData();
duke@435 139
duke@435 140 ciReturnAddress* get_return_address(int bci);
duke@435 141
minqi@4267 142 GrowableArray<ciMetadata*>* get_ci_metadata() const { return _ci_metadata; }
coleenp@4037 143 // RedefineClasses support
coleenp@4037 144 void metadata_do(void f(Metadata*));
coleenp@4037 145
duke@435 146 void print_contents();
duke@435 147 void print();
duke@435 148 };
stefank@2314 149
stefank@2314 150 #endif // SHARE_VM_CI_CIOBJECTFACTORY_HPP

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